EEG: NORMAL & NORMAL VARIANTS | Questions and Correct Answers | Latest Update 2024/2025
EEG: NORMAL & NORMAL VARIANTS | Questions and Correct Answers | Latest Update 2024/2025 Subclinical Rhythmic Electrographic Discharge of Adults (SREDA) - Answer --5-7 Hz, sharp and slow waves with it -40-80 seconds -50+ y/o typically -T5/T6 + posterior regions -drowsiness mostly Alpha Variants - Answer --Slow Alpha Variant: Half the alpha freq -Fast Alpha Variant: Double the alpha freq. -may appear in only 1 hemisphere Alpha - Answer --8-13 Hz -Voltage is avg 50 uV -Non-dominant hemisphere 50% taller-Attenuates w/ eye opening & mental alerting (QNDP?) -Cornea polarity: + -Retina polarity: - Posterior Slow Waves of Youth (PSWY) - Answer --Alpha on top of delta/intermixed -Occipital -Seen in children and young adults-teen
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eeg normal normal variants 2024
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eeg normal normal variants 2025
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subclinical rhythmic electrographic discharge of a
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